+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   34786 (2001 RS87) Classification: Main-belt Asteroid          SPK-ID: 2034786 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09906668632870343 4.2558e-08   a 2.937868239143329 1.658e-08 au q 2.646823367821057 1.3309e-07 au i .9797728679766065 4.0364e-06 deg node 292.8708870219979 0.00029077 deg peri 15.81913526793602 0.00029186 deg M 344.5751425267983 2.5073e-05 deg tp 2459279.307138257257 (2021-Mar-05.80713826) 0.00012816 TDB period 1839.275975282222 5.04 1.557e-05 4.263e-08 d yr n .1957291917243474 1.6569e-09 deg/d Q 3.228913110465602 1.8223e-08 au   Orbit Determination Parameters    # obs. used (total)      1091      data-arc span      10560 days (28.91 yr)      first obs. used      1991-09-12      last obs. used      2020-08-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51176      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 07:59:07   Additional Information  Earth MOID = 1.63014 au   Jupiter MOID = 1.98334 au   T_jup = 3.266  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.28   n/a E2021B10   diameter diameter 4.286 km 0.660 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.183   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   34786 (2001 RS87)          Discovered 2001-Sep-11 by LONEOS at Anderson Mesa Reference: 20020128/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2001 RS87 = 1996 TT  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-May-08 08:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin